I have been away from RC modeling and flying for a few years and just started back up. I bought a large trainer plane, the Hobbico Hobbistar 60 Select . It has a 71" wingspan and an OS 65LA engine. I've flown it a few times and it seems allright, but as I was cleaning it up today after flying I noticed it didn't have any right or down thrust. Do you think I should put some in it? Thanks for your replys everyone.